Question 33 - Part 2 - CBSE Class 10 Sample Paper for 2025 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards

Last updated at Sept. 20, 2024 by Teachoo

Transcript

Question 33 – Part 2 Prove that the lengths of tangents drawn from an external point to a circle are equal. Using above result, find the length BC of 𝛥ABC. Given that, a circle is inscribed in 𝛥ABC touching the sides AB, BC and CA at R, P and Q respectively and AB= 10 cm, AQ= 7cm ,CQ= 5cm. From theorem 10.2, Lengths of tangents drawn from external point are equal Hence, AR = AQ = 7 cm CP = CQ = 5 cm BP = BR Since AB = 10 cm, and AR = 7 cm, ∴ BR = 3 cm Thus, BP = BR = 3 cm Now, BC = BP + CP = 3 + 5 = 8 cm

Next: Question 34 Important → Go Ad-free

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

Class 6

Class 7

Class 8

Class 9

Class 10

Class 11

Class 12

Courses

Interesting

Popular